True bass

18S matches seamlessly with Dynaudio studio monitors… intelligently.



True bass. Adding 18S to your monitors will open up a new world of performance that lets you mix and master with painstaking accuracy… and deliver tracks that translate beautifully to any playback system.

We’ve applied advanced DSP modelling technology that acoustically matches 18S to any Dynaudio Pro Studio Monitor from BM Classic, LYD and upwards, turning two-way systems into three-way set-ups. Its punch is delivered by two of our brand-new MSP+ Hybrid Drive units and a 500W amp for absolute control and power.

Getting the 18S to match seamlessly with our professional monitors is key for absolute accuracy when mixing and mastering. That has meant assessing the acoustic characteristics of each of our popular high-end studio speakers and creating custom performance maps for each one. And it’s future-proof: when we add new studio speakers to the line-up, we’ll release a firmware update for the 18S to add their performance maps – so it can grow along with your needs and equipment.

With this information at its disposal, the 18S’s display and menu system lets you select the specific Dynaudio speakers you’re using in your monitoring setup. This means the roll-off can be tailored perfectly to suit. And, if you combine a LYD 48 stereo or surround setup, you’ll essentially have a full-blown four-way monitoring system at your disposal.

The 18S has a selection of RCA or XLR connections for flexibility with your studio setup, and comes with a number of handy features to help more advanced systems too. This includes the ability to set a time delay to ensure the sub and speakers are working perfectly in sync: all you need to do is enter the distance from the sub to the speakers and the sub adjusts itself automatically using both time and phase delays.

There’s also a full three-filter parametric EQ to easily defeat room modes that could affect the accuracy of your final recording.

MSP+ Hybrid Drive

We’ve designed a brand-new driver for the 18S.

This one is made from aluminium rather than our standard Magnesium Silicate Polymer material. It has paper backing and an MSP dust-cap on the front. Why the sandwich? Because a subwoofer requires a different balance between stiffness, lightness and damping than standard speaker drivers.

The new MSP+ Hybrid Drive units have been designed specifically with subwoofers in mind for the best performance possible. Adding 18S to your monitors will open up a new world of performance that lets you mix and master with painstaking accuracy… and deliver tracks that translate beautifully to any playback system.

The 18S comes with presets designed to work with these monitors…

• BM6 Classic
• BM15 Classic
• BM5 mkIII

• LYD 5
• LYD 7
• LYD 8
• LYD 48

• M5P





500-watt state-of-the-art Class D amplifier module


Dual 9in MSP+ Hybrid Drive long-throw woofers for accurate low-end frequency reproduction


Advanced DSP with presets for a wide range of Dynaudio Pro studio monitors


Preset speaker crossover filters


Time alignment for adjusting according to position


Three-band, built-in Parametric EQ


Dual opposing driver design principle


16-230Hz frequency range


Master/Slave feature for daisy-chaining multiple subwoofers



  • Status Current
  • Segment Pro
  • Series Subwoofers
  • Type Subwoofer
  • Analog inputs 2x balanced XLR, 2x unbalanced RCA phono
  • Analog outputs 2x balanced XLR, 2x unbalanced RCA phono
  • Amplifier Power (W) 500W
  • AC Power Input 100-120 V/200-240 V 50/60 Hz
  • Auto on/off Yes
  • Max Stand-by Power Consumption (W) 0.5
  • Max Power Consumption (W) 490
  • Lower Cutoff (Hz @85 dB +/- 3 dB) 16
Product-Lineart-Sub 18S

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    Subwoofers series

    • Status:
    • Segment:
    • Series:
    • Type:
    • Analog inputs:
    • Analog outputs:
    • Amplifier Power (W):
    • AC Power Input:
    • Auto on/off:
    • Max Stand-by Power Consumption (W):
    • Max Power Consumption (W):
    • Lower Cutoff (Hz @85 dB +/- 3 dB):
    • 18S
    • Current
    • Pro
    • Subwoofers
    • Subwoofer
    • 2x balanced XLR, 2x unbalanced RCA phono
    • 2x balanced XLR, 2x unbalanced RCA phono
    • 500W
    • 100-120 V/200-240 V 50/60 Hz
    • Yes
    • 0.5
    • 490
    • 16
    • 9S
    • Current
    • Pro
    • Subwoofers
    • Subwoofer
    • 1x XLR LFE, 2x XLR stereo
    • 1x XLR Slave out, 2x XLR SAT out
    • 300W
    • 100-120 V/200-240 V 50/60 Hz
    • Yes
    • 0.5
    • 350
    • 22

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